package com.gustuy;

import java.util.Random;

public class RandomGrade {
    private static int randG(int low,int high){
        int a,b;
        a=low;
        b=high;
        Random randomgrade;
        randomgrade=new Random();
        int grade= (int) ((a+b)/2+(b-a)/4*randomgrade.nextGaussian());
        return grade;
    }

    public static void main(String[] args) {
        for(int i=0;i<3;i++)
        System.out.println(RandomGrade.randG(70, 90));
    }
}
